Active Aqua 3/4 Inch Stopper, Pack of 10 | End Plug for 3/4 in Line

Active Aqua 3/4 Inch Stopper for Capping Feed Lines

This is a simple end plug that seals the open end of a 3/4 in line, and it comes in a pack of 10. It belongs to the Active Aqua hardware family. That line includes the 3/4 in tubing, tees, elbows and straight connectors used to build feed manifolds. A stopper in the last fitting on a run turns an open pipe into a dead end. Pressure then builds evenly along the drippers or spray heads. It also seals a tee you are not using yet, which keeps a manifold ready for expansion without leaking in the meantime. Each pack weighs about 0.2 lb, small enough to keep a few spares in the parts bin. The pack carries part number AAST75. That number is handy when matching it against the rest of a 3/4 in Active Aqua build. Stoppers are small parts, but a missing one can drain a reservoir onto the floor overnight. Having ten on hand means every branch can be capped in one session. They suit flood and drain systems, drip manifolds and recirculating lines alike.

Where a Tubing Stopper Earns Its Place in the Grow Room

Most growers reach for a tubing stopper while laying out irrigation, before a single plant goes in. Run the main line along the bench, branch it with tees, and cap any leg that reaches past the last pot. During a crop, a stopper lets you shut a single branch while you swap a clogged emitter or move a table. Push it in firmly and check for drips once the pump runs, since a seated plug should stay dry. In a flood and drain room, stoppers cap fill lines on tables that sit empty between crops. They also make quick test plugs when pressure-checking a new manifold before the reservoir is full. A clean, dry fitting seats best, so wipe off nutrient residue before plugging an old line. Keep the spares in the same bin as the matching fittings so they turn up when needed. Be clear on the size limit. They fit this one line size only, so 1/2 in or 1 in runs need stoppers sized to match.

Key Features

• Pack of 10: Enough stoppers to cap every dead-end leg and spare tee across a room.
• Sized for 3/4 in Line: Seals the open end of 3/4 in feed and drain lines in hydroponic and drip systems.
• Part of the Active Aqua Hardware Line: Matches the brand's 3/4 in tubing, tees, elbows and straight connectors.
• Quick Branch Shutoff: Lets you close one leg for maintenance without draining the whole manifold.
• Manifold Expansion: Caps unused outlets so a system can grow later without replumbing.

Technical Specifications